Crystal Structure of Recombinant Human Growth Differentiation Factor 5. Evidence for Interaction of the Type I and Type II Receptor Binding Sites.
Schreuder, H., Liesum, A., Pohl, J., Kruse, M., Koyama, M.(2005) Biochem Biophys Res Commun 329: 1076
- PubMed: 15752764
- DOI: https://doi.org/10.1016/j.bbrc.2005.02.078
- Primary Citation of Related Structures:
2BHK - PubMed Abstract:
The crystal structure of human growth differentiation factor 5 (GDF5) was solved at 2.4A resolution. The structure is very similar to the structure of bone morphogenetic factor 7 (BMP7) and consists of two banana-shaped monomers, linked via a disulfide bridge. The crystal packing of GDF5 is the same as the crystal packing of BMP7. This is highly unusual since only 25-30% of the crystal contacts involve identical residues. Analysis of the crystal packing revealed that residues of the type I receptor epitope are binding to residues of the type II receptor-binding epitope. The fact that for both BMP family members the type I and type II receptor-binding sites interact suggests that the complementary sites on the receptors may interact as well, suggesting a way how preformed receptor heterodimers may form, similar to the preformed receptors observed for the erythropoietin receptor and the BMP2 receptors.
Organizational Affiliation:
sanofi-aventis, Industriepark Hoechst, Building G 865, A-65926 Frankfurt, Germany. Herman.Schreuder@sanofi-aventis.com